Vulcanizer



Aug. 2,1927; 1,637,931

P. F. M. A. FONTANA VULCANIZER Filed NOV. 18, 1925 Fig Patented Aug'. 2, 1927.v

UNITED STATES PATENT OFFICE.

PAUL FBANQOIS MARCLALBERT FONTANA, 0F CLUSES, FRANCE, ASSIGNOB T O SOCIETEl DES APPAREILS MEPHISTO JULES MANFREDI AND CIE., 0F CLUSES (HAUTE- SAVOIE), FRANCE.

vlincnrrznn.

Application led November 18, 1925, Serial No. 69,882, and in France June 25, 1995.

This invention relates to an apparatus lighted and heated lautomatically f or the vulcanization ov air-tubes for thetlres of motor cars, motor-cycles and cyclesy and concerns repairing elements each comprising a rubber patch impregnated with sulphur and yarranged under a metal cup contalmng a washer of nitrate of potash, these elements being characterized by the fact that they are provided over their entire upper sur- `Iface with ignition products, such as nitrate of potashand amorphous phosphorus, thls cup beingV closed by a lvar'nished piece of cardboard impregnated with paraiin and which covers the said cup.

The invention is illustrated by way of eX? y ample only, in the accompanymg drawing in which: v

Fig. 1 is a sectional view showing a repairing element.

Fig. 2 is a corresponding plan view.

Fig. 3 is a View showing the method of utilization.

Fig. 4 is a section of the press serving to apply the repairing element on the member'y to be repaired and to light it.

As illustrated in the drawing, the repairs are effected by means of elements such as illustrated in Figs. 1 and 2. .Each of these elements comprises a rubber patch a made of pure Para rubber, having the required shape: round, oval, etc. This rubber patch contains a certain quantity of sulphur so that it can be vulcanized. This patch is secured by means of glue to the under side y of a metal cup b having the same shape. Its lower face is covered with a piece of canvas c which protects it before use.

Within thecup 3 is placed a composition capable of burning during a predetermined time to produce a rise in temperature also predetermined. This composition is, preferably, obtained by impregnating-a washer of straw-board d with nitrate of potash and by covering the entire surface with nitrate of potash and amorphous phosphorus. Before use, this composition is sheltered from the air by a piece of cardboard 'e covered with parailin and varnished. This piece of carboard e protects the composition againstl moisture and oxidation.

The member to be vulcanized is applied against the air tube to be repaired by means .of the press illustrated, which comprises a yoke f provided at its base with a small 'm1 pressing, through a shoulder fn, on a vspring o; the lower striated part passes in front of sparkproducing elements, preferably ferro-cerium stones p lcontained in two conduits g secured on the lower part of the screw lc. The stones p are pushed by springs 1' adjusted by screws s.

The operation is as follows:

For effecting a re air, the damaged portion of the air tube rv ig. 3) or other member to be repaired, is cleaned. The canvas covering washer c is removed from Ia patch 'of the required shape, as well as the piece of cardboard e .impregnated with paraiiin. The cup and the patch are placed on the air tube and the whole is inserted in the press, as shown in Fig. 3; the screw is acted upon for suitably clamping the cup.

These preparations being effected, a blow is struck on the striker m. The sparks produced ignite the composition which burns .during the required time by producing the ignition is ensured.

The arrangements described above are given b way of example only; all the detai'ls o execution/'and of realization, the forms, materials/f' and dimensions can be varied without departing thereby from the principle of the invention.

, Claims z- 1. A repairing element for a vulcanizer lighted and heated automatically, comprising a metal cup, a rubber patch impregnated with Sulphur and secured to the under face l of this cup, a combustible composition within the cup, and ignition means covering said composltlon over its. entire surface.

2. A repalrlng element for a vulcanizer after cooling, the repaired ing lighted and heated automatically, comprising a metal cup, a rubber patch impregnated with sulphur and secured to the under face of this cup, a combustible composition in the cup, ignition means covering this composition over its entire surface, and means for sheltering said composition from the air.

3.A repairing element for a vu'lcanizer lighted and heated automatically, comprisa metal cup, a rubber patch impregnated with sulphur and secured to the under ace of this cu a Washer of straw-board impregnated Wit nitrate of potash within the cup and ignition means covering said composition over its entire upper surface.

4. A repairing element for a vulcanizer lighted and heated automatically, comprising a metal cup, a rubber patch impregnated with sulphur, and detachably secured to the under face of this cup, a combustible composition within said cup, phosphorus covering this composition over its entire surface..

' its entire surface.

(5. A repairing element for a vulcani-zer vlighted and heated automatically, comprising a metal cup, a rubber patch impregnated with sulphur and adliesively secured to the under face of this cup, a combustible composition within the cup, ignition means covering said composition over its entire surface, and a piece of cardboard impregnated with parain overlaying said composition for sheltering the same from the air.

The foregoing-specification of my vulcanizer signed by me this 6th day of November 1925.

4P. E. M. A. FONTANA. 

